This is Xpert RC WR-4401 Waterproof "Super Torque" Brushless Servo.
Feature:
- Full waterproof
- Brushless motor design provides extremely high speed, top efficiency, and low power consumption.
- 4096 resolution and SIC (Single Integrated Circuit) for the highest performance and durability.
- Light weight design
- All Aluminum case for the best thermal dissipation and durability.
- Strong Metal Gear
- Glitch-free
- Sophisticated error correction
- High-Speed, High-precision 12-bit AD converter and CPU calculation
- Fail safe
- Over current protection
- Over temperature protection
- Start sonorant
Dimensions: 40x 37.8x20 mm
Weight: 70.3 g
Speed:
- @4.8V: .106 sec/60
- @6.0V: .085 sec/60
- @6.6V: .077 sec/60
Torque:
- @4.8V: 14.72 kg-cm (204.31 oz-in)
- @6.0V: 18.40 kg-cm (255.39 oz-in)
- @6.6V: 20.24 kg-cm (280.93 oz-in)
Matching Gear Set: XGS7232S
Matching Case: XP-05